diff --git a/llvm/utils/gn/secondary/clang/unittests/Format/BUILD.gn b/llvm/utils/gn/secondary/clang/unittests/Format/BUILD.gn
index c501f121df4a..44ac777eac86 100644
--- a/llvm/utils/gn/secondary/clang/unittests/Format/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/unittests/Format/BUILD.gn
@@ -12,6 +12,7 @@ unittest("FormatTests") {
   ]
   sources = [
     "AlignBracketsTest.cpp",
+    "AlignmentTest.cpp",
     "BracesInserterTest.cpp",
     "BracesRemoverTest.cpp",
     "CleanupTest.cpp",